Zobrazeno 1 - 10
of 259
pro vyhledávání: '"John W Nicholson"'
Publikováno v:
Heliyon, Vol 10, Iss 3, Pp e25239- (2024)
Objectives: This paper reviews the chemical behaviour of glass polyalkenoate (glass-ionomer) dental cements, both conventional and resin-modified, in contact with natural tissues, with the aim of determining whether these materials can be considered
Externí odkaz:
https://doaj.org/article/f10379ec27a74c568be6e614146556ee
Autor:
John W Nicholson
With synthetic implants such as hip joints, heart valves and dental crowns now routinely used in the human body for medical purposes, study of the metals, ceramics and polymers used in these repairs is more important than ever. The Chemistry of Medic
Publikováno v:
Biomaterial Investigations in Dentistry, Vol 10, Iss 1 (2023)
AbstractThe topic of fluoride release and uptake by glass-ionomer (glass polyalkenoate) dental cements is reviewed. The study was based on a literature search carried out using PubMed. The main key words used were glass-ionomer and fluoride, and furt
Externí odkaz:
https://doaj.org/article/850339e627d5424f90ee20fcae83c0e8
Autor:
John W. Nicholson
Publikováno v:
Prosthesis, Vol 4, Iss 4, Pp 648-663 (2022)
This paper reviews the use of bioactive glasses as materials for periodontal repair. Periodontal disease causes bone loss, resulting in tooth loosening and eventual tooth loss. However, it can be reversed using bioactive glass, typically the original
Externí odkaz:
https://doaj.org/article/707f7f8f0cbb4a4aa73fd4be24ee22c1
Autor:
John W. Nicholson
Publikováno v:
Inorganics, Vol 11, Iss 12, p 449 (2023)
(1) Background: The compound ytterbium trifluoride is used as a component of several dental materials, and this is reviewed in the current article. (2) Methods: Published articles on this substance were identified initially from PubMed, and then from
Externí odkaz:
https://doaj.org/article/7f648f85758a46c5b83ec21ea96c1500
Publikováno v:
Journal of Materials Research and Technology, Vol 15, Iss , Pp 3570-3574 (2021)
This study examined the possible buffering effect of acid-base glass-ionomer cements. Commercial capsulated materials were used, namely: Riva Self Cure, Ketac Molar, Equia Forte and Chemfil Rock. Cements were prepared by vibratory mixing then cylinde
Externí odkaz:
https://doaj.org/article/e5cb3e07f9214a2ea07bec123fed2ee3
Autor:
Fernanda M. Tsuzuki, Renata C. Pascotto, Luis C. Malacarne, Antonio C. Bento, Antonio Medina Neto, Lidiane Vizioli de Castro-Hoshino, Monique Souza, John W. Nicholson, Mauro L. Baesso
Publikováno v:
Biomaterial Investigations in Dentistry, Vol 8, Iss 1, Pp 39-47 (2021)
Objective To evaluate the early stages of the setting process of chemically activated restorative glass-ionomer cements (GICs). Material and methods Five GICs were evaluated (n = 5): Equia Forte (GC), Equia Forte HT (GC), Ketac Universal (3M ESPE), M
Externí odkaz:
https://doaj.org/article/29d009664aa5434f9bdc2511e9a82ff1
Publikováno v:
Biomedicines, Vol 11, Iss 2, p 250 (2023)
Zinc phosphate cement is used in dentistry to lute crowns and bridges. So far, its biocompatibility for other applications has not been studied. This paper reports the biocompatibility of zinc phosphate towards MG63 cells, testing both the material (
Externí odkaz:
https://doaj.org/article/f6a4e1170f964c29ac853e29dd5d353e
Publikováno v:
Acta Biomaterialia Odontologica Scandinavica, Vol 5, Iss 1, Pp 9-21 (2019)
Aim: The aim of this article is to review the literature on the use of antimicrobial additives in glass-ionomer dental cements. Method: An electronic search between 1987 and the end of 2017 was performed using PubMed, Web of Science and Google search
Externí odkaz:
https://doaj.org/article/fe1f11b7ed3440489248c3a4d562986f
Autor:
Beata Czarencka, John W. Nicholson
Publikováno v:
Ceramics-Silikáty, Vol 62, Iss 2, Pp 158-162 (2018)
The ability of glass-ionomer dental cements to take up fluoride from a fluoridated mouthwash has been determined, and shown to vary somewhat with the degree of maturation (ageing). Three commercial conventional glass-ionomer cements were used to prod
Externí odkaz:
https://doaj.org/article/f4161157906349e99f71efbd833c4b31